If the 50,000-BTU unit isn’t right for your space, the Mr. Heater Big Maxx series is also available in 80,000 BTU and 125,000 BTU models. All three models have LP conversion kits, spark ignition ...

For a powerful 5,600-watt portable garage heater, we recommend this model from NewAir. ... Mr. Heater Big Maxx Natural Gas Garage Heater . ... thanks to its impressive 80,000-BTU output.

The Big Maxx natural gas heater generates 80,000 BTUs of heat per hour, ... Best natural gas garage heater/best garage heater for large spaces: Mr. Heater: MHU80: Natural gas: 80,000 BTUs: ...

This powerful natural gas garage heater is capable of warming up spaces up to 1,000 square feet. It can be installed as a wall-mounted or freestanding unit, with an electronic ignition that makes ...